Energy-time entanglement of quasi-particles in solid-state devices

TL;DR

This paper proposes an experimental method to observe energy-time entanglement of quasi-particles, specifically electron-hole pairs, in solid-state devices like 2DEG-2DHG junctions, expanding quantum entanglement studies beyond photonics.

Contribution

It introduces a novel approach to generate and detect energy-time entanglement in solid-state mesoscopic systems using existing junction technologies.

Findings

Feasibility of using 2DEG-2DHG junctions as entanglers

Potential for observing energy-time entanglement in electron-hole pairs

Extension of entanglement concepts to solid-state devices

Abstract

We present a proposal for the experimental observation of energy-time entanglement of quasi-particles in mesoscopic physics. This type of entanglement arises whenever correlated particles are produced at the same time and this time is uncertain in the sense of quantum uncertainty, as has been largely used in photonics. We discuss its feasibility for electron-hole pairs. In particular, we argue that the recently fabricated 2DEG-2DHG junctions, irradiated with a continuous laser, behave as "entanglers" for energy-time entanglement.